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[ASAP] Deactivation of Secondary Amine Catalysts via Aldol Reaction–Amine Catalysis under Solvent-Free Conditions

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Published On :: Tue, 05 May 2020 04:00:00 GMT

The Journal of Organic Chemistry
DOI: 10.1021/acs.joc.0c00665


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[ASAP] The Synthesis of Functionalized 3-Aryl- and 3-Heteroaryloxazolidin-2-ones and Tetrahydro-3-aryl-1,3-oxazin-2-ones via the Iodocyclocarbamation Reaction: Access to Privileged Chemical Structures and Scope and Limitations of the Method

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Published On :: Tue, 05 May 2020 04:00:00 GMT

The Journal of Organic Chemistry
DOI: 10.1021/acs.joc.9b03400


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[ASAP] One-Pot Multicomponent Reaction of Catechols, Ammonium Acetate, and Aldehydes for the Synthesis of Benzoxazole Derivatives Using the Fe(III)–Salen Complex

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Published On :: Wed, 06 May 2020 04:00:00 GMT

The Journal of Organic Chemistry
DOI: 10.1021/acs.joc.0c00560


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[ASAP] Inverse Electron-Demand Diels–Alder Bioconjugation Reactions Using 7-Oxanorbornenes as Dienophiles

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Published On :: Thu, 07 May 2020 04:00:00 GMT

The Journal of Organic Chemistry
DOI: 10.1021/acs.joc.0c00583


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Real-time quantification of fusion transcripts with ligase chain reaction by direct ligation of adjacent DNA probes at fusion junction

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Analyst, 2020, Advance Article
DOI: 10.1039/D0AN00163E, Paper
Fengxia Su, Jianing Ji, Pengbo Zhang, Fangfang Wang, Zhengping Li
A fusion transcript assay is developed based on direct ligation and ligase chain reaction.
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Target triggered ultrasensitive electrochemical polychlorinated biphenyl aptasensor based on DNA microcapsules and nonlinear hybridization chain reaction

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Analyst, 2020, Advance Article
DOI: 10.1039/D0AN00065E, Paper
Ting Han, Shaozhen Wang, Feifan Sheng, Sicheng Wang, Tianyue Dai, Xiaojun Zhang, Guangfeng Wang
In this work, we demonstrated an ultrasensitive detection platform for polychlorinated biphenyls (PCBs) based on DNA microcapsules and a nonlinear hybridization chain reaction (NHCR).
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Isothermal cross-boosting extension–nicking reaction mediated exponential signal amplification for ultrasensitive detection of polynucleotide kinase

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Analyst, 2020, Advance Article
DOI: 10.1039/C9AN02569C, Paper
Xiao-Yu Li, Yun-Xi Cui, Yi-Chen Du, An-Na Tang, De-Ming Kong
A novel nucleic acid-based isothermal signal amplification strategy, named cross-boosting extension–nicking reaction (CBENR) is developed and successfully used for rapid and ultrasensitive detection of polynucleotide kinase (PNK) activity.
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Fluorescence chemosensing of meldonium using a cross-reactive sensor array

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Analyst, 2020, 145,3345-3352
DOI: 10.1039/D0AN00209G, Paper
Ergin Yalcin, Cem Erkmen, Tugba Taskin-Tok, Mehmet Gokhan Caglayan
Differential sensing of meldonium was achieved using fluorescent chemosensors.
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Electrochemiluminescence analysis of tryptophan in aqueous solutions based on its reaction with tetraphenylborate anions

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Analyst, 2020, 145,3364-3369
DOI: 10.1039/D0AN00229A, Paper
Yuriy Zholudov, Natalia Lysak, Dmytro Snizhko, Olena Reshetniak, Guobao Xu
A pulsed electrogenerated chemiluminescence is observed upon the oxidation of tryptophan amino acid in aqueous solutions with a tetraphenylborate co-reactant.
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Time-resolved in situ monitoring of photocatalytic reactions by probe electrospray ionization mass spectrometry

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Analyst, 2020, 145,3313-3319
DOI: 10.1039/D0AN00305K, Paper
Zhongbao Han, Xiaoyu Gu, Shirong Wang, Liyan Liu, Ying Wang, Zhen Zhao, Zhan Yu
We report the application of PESI-MS to in situ monitoring of photocatalytic reactions of cationic dyes in suspensions in real-time.
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Development of a chromophore-solid phase peptide reaction assay (C-SPRA) for assessing skin sensitization in vitro

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Analyst, 2020, 145,3211-3216
DOI: 10.1039/C9AN02514F, Communication
Hiroshi Miyazaki, Yoshio Hamada, Hikaru Takaishi, Yuuki Minamino, Hidefumi Ikeda, Hideaki Mekata, Masayuki Takaishi, Kunihiko Yamashita, Kenji Usui
We developed an in vitro chromophore-solid phase peptide reaction assay (C-SPRA) using chromophores and immobilized peptides on microbeads. C-SPRA would enable accurate and high-throughput assessments of various chemicals.
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Fe3Pt intermetallic nanoparticles anchored on N-doped mesoporous carbon for the highly efficient oxygen reduction reaction

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Chem. Commun., 2020, 56,4898-4901
DOI: 10.1039/D0CC00895H, Communication
Danke Chen, Zhuoyi Li, Yu Zhou, Xu Ma, Hanqing Lin, Wen Ying, Xinsheng Peng
N-Doped mesoporous carbon catalysts dispersed with Fe3Pt intermetallic nanoparticles, exhibiting excellent ORR performance, were synthesised by direct pyrolysis of Pt–Fe co-functionalized ZIF-8.
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Ultrasensitive DNA Electrochemical Biosensor Based on MnTBAP Biomimetic Catalyzed AGET ATRP Signal Amplification Reaction

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Published On ::

Chem. Commun., 2020, Accepted Manuscript
DOI: 10.1039/D0CC02176H, Communication
Haobo Sun, Yunliang Qiu, Yajie Lu, Jinming Kong, Xueji Zhang
In this paper, an ultrasensitive, highly selective and green electrochemical biosensor for quantifying DNA sequences (aM DNA) based on MnTBAP catalyst for AGET ATRP reaction is proposed. For the first...
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Correction: Colloidal synthesis of porous red phosphorus nanoparticles as a metal-free electrocatalyst for the hydrogen evolution reaction

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Chem. Commun., 2020, Advance Article
DOI: 10.1039/D0CC90201B, Correction
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Cheng-Ying Chan, Chao-Hung Chang, Hsing-Yu Tuan
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The synergy between the CsPbBr3 nanoparticle surface and the organic ligand becomes manifest in a demanding carbon–carbon coupling reaction

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Chem. Commun., 2020, 56,5026-5029
DOI: 10.1039/D0CC01339K, Communication
Ignacio Rosa-Pardo, Carla Casadevall, Luciana Schmidt, Miguel Claros, Raquel E. Galian, Julio Lloret-Fillol, Julia Pérez-Prieto
The cooperative action between the CsPbBr3 surface and capping makes the photoredox homo-/cross-coupling of benzyl bromides under mild conditions possible.
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Modulation of an intermediate layer between NiCoP and Ni foam substrate in a microwire array electrode for enhancing the hydrogen-evolution reaction

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Chem. Commun., 2020, 56,4990-4993
DOI: 10.1039/D0CC01488E, Communication
Dan Guo, Huayu Chen, Hanmin Tian, Shuxin Ouyang, Jianbo Wang, Jun Lv
A strategy involving modulating the intermediate layer of an electrode was developed to promote the electrocatalysis kinetics of the electrode and therefore enhance its performance.
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The reaction pathway of CO2RR to low-carbon alcohols: a theoretical study

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New J. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0NJ01265C, Paper
Anmin Liu, Weixin Guan, Qian Cao, Xuefeng Ren, Liguo Gao, Qidong Zhao, Tingli Ma
Catalytic hydrogenation of CO2 to chemicals is an important approach for reducing the concentration of CO2 in the atmosphere. Among all value-added chemicals, alcohol can be considered one of the...
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Ultrasonic Promoted Synthesis of Ag Nanoparticles Decorated Thiourea–Functionalized Magnetic Hydroxyapatite: A Robust Inorganic–Organic Hybrid Nanocatalyst for Oxidation and Reduction Reactions

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New J. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0NJ00829J, Paper
Saeed Bahadorikhalili, Hosein Arshadi, Zahra Afrouzandeh, Leila Ma'mani
In this research, ultrasonic synthesis is applied for the fabrication of a novel catalyst, based on immobilization of silver nanoparticles (AgNPs) on thiourea functionalized magnetic hydroxyapatite. Recoverable Ag nano–catalyst is...
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An expedient synthesis of new imino-thiazolidinone grafted dispiro-pyrrolidine-oxindole/indeno hybrids via a multicomponent [3+2] cycloaddition reaction in a deep eutectic solvent

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Published On ::

New J. Chem., 2020, Advance Article
DOI: 10.1039/D0NJ00801J, Paper
Ruby Singh, Munna Ram Saini, Diksha Bhardwaj, Aakash Singh
A facile and selective synthesis of novel factionalized dispiro-pyrrolidines via a three component [3+2] cycloaddition reaction using a deep eutectic solvent.
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Preparation of MOFs Catalysts Simultaneously Modulated Metal Nodes and Ligands Via One-Pot Method for Optimizing Cycloaddition Reactions

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New J. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0NJ01086C, Letter
Peng Wang, Sha Wang, Wenlei Zhang, Xiaohan Li, Zhida Gu, Wenze Li, Shuang Zhao, Yu Fu
MOFs catalysts are farbricated in one-pot method by simultaneously adjusting metal nodes and ligands. Pore environments, Lewis acids (LAs) and Brønsted acids (BAs) are controlled when using BAs groups to...
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Fabrication of a 3D self-supporting Ni–P/Ni2P/CC composite and its robust hydrogen evolution reaction properties in alkaline solution

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New J. Chem., 2020, Advance Article
DOI: 10.1039/D0NJ00727G, Paper
Fan Yang, Shuqin Yang, Qianqian Niu, Siyue Huo, Zimo Song, Laizhou Song
The Ni–P/Ni2P/CC composite exhibits excellent alkaline HER properties derived from Ni–P filling the sites on the CC not occupied by Ni2P nanosheets.
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Bonding–antibonding state transition induces multiple electron modulations toward oxygen reduction reaction electrocatalysis

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New J. Chem., 2020, Advance Article
DOI: 10.1039/D0NJ00660B, Paper
Qi Zhang, Haixia Zhong, Can Chen, Juexian Cao, Liwen Yang, Xiaolin Wei
B doping induces the transformation from the bonding state to the antibonding state of an Ni–N bond, resulting in enhanced ORR activity.
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“Take No Medicine Without Advice”: New York Reacts to Pandemics Past

By blog.nyhistory.org
Published On :: Wed, 15 Apr 2020 13:49:26 +0000

The grim new numbers of the cases and deaths from COVID-19 reach us every day. As laypeople, we want to tune them out at times, but they are crucial to medical practice and public health. Certainly, we see that in history: Here is the sobering list of yellow fever deaths at Bellevue Hospital in 1795...

The post “Take No Medicine Without Advice”: New York Reacts to Pandemics Past appeared first on New-York Historical Society.


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Lilac flower-shaped ZnCo2O4 electrocatalyst for efficient methanol oxidation and oxygen reduction reactions in an alkaline medium

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CrystEngComm, 2020, 22,2849-2858
DOI: 10.1039/D0CE00024H, Paper
T. V. M. Sreekanth, P. C. Nagajyothi, K. C. Devarayapalli, J. Shim, K. Yoo
A ZnCo2O4 electrocatalyst for the efficient MOR and ORR.
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Different effects in the selective detection of aniline and Fe3+ by lanthanide-based coordination polymers containing multiple reactive sites

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CrystEngComm, 2020, 22,2837-2844
DOI: 10.1039/D0CE00238K, Paper
Xinfang Liu, Liyong Du, Rongfang Li, Ningning Ma, Mengdi You, Xun Feng
Isostructural Ln-CPs (1-Eu and 2-Tb) show almost the same high detection ability for Fe3+ and different detection abilities for aniline. The detection difference was studied through PXRD, UV-vis, luminescence lifetimes and Hirshfeld surface analysis.
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Controlled engineering of nano-sized FeOOH@ZnO hetero-structures on reduced graphene oxide for lithium-ion storage and photo-Fenton reaction

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CrystEngComm, 2020, 22,2827-2836
DOI: 10.1039/D0CE00171F, Paper
Binghui Xu, Xin Dai, Qingke Tan, Yuan Wei, Gonggang Liu, Guanglei Wu
In this work, a nano-sized goethite and zinc oxide hetero-structure (FeOOH@ZnO) dispersed on reduced graphene oxide (RGO) sheets was synthesized for the first time to construct a ternary composite (FeOOH@ZnO/RGO) via a stepped graphene oxide (GO) deoxygenation process.
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Role of Surface Phenomena on the Reaction of Molecular Solids: the Diels-Alder Reaction on Pentacene

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CrystEngComm, 2020, Accepted Manuscript
DOI: 10.1039/D0CE00269K, Paper
Selma Piranej, Michael A. W. Shelhart Sayers, Gregory J. Deye, Sergey N. Maximoff, Jonathan P. Hopwood, Haejun Park, Jean G. Slavsky, Jacob Ciszek
Reactivity trends for molecular solids cannot be explained exclusively through topochemical phenomenon (i.e. diffusivity, reaction cavities) or electronic structure of the molecules. As an example of this class, Diels-Alder reactions...
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Co3O4/MnCO3 heterojunction on three-dimensional nickel foam for enhanced oxygen evolution reaction

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CrystEngComm, 2020, Accepted Manuscript
DOI: 10.1039/D0CE00325E, Paper
Guijin Yang, Botao Zhu, Daqiang Gao, Yujun Fu, Jing Zhao, Jinyun Li
For water electrolysis and metal-air batteries, rational design and preparation of highly efficient and environmentally friendly catalysts for oxygen evolution reactions (OER) is urgently required. Here, abundant Co3O4/MnCO3 heterointerfaces supported...
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How our netas are reacting to the Lokpal bill

By www.firstpost.com
Published On :: 2013-12-17T11:09:51+05:30

A video wrap up of reactions to the Lokpal bill


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Diversity oriented multi-component reaction (DOS–MCR) approach to access natural product analogues: regio- and chemo-selective synthesis of polyheterocyclic scaffolds via one-pot cascade reactions

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Org. Biomol. Chem., 2020, 18,3082-3092
DOI: 10.1039/D0OB00368A, Paper
Lakshmanan Palanivel, Vasuki Gnanasambandam
Skeletally diverse and complex polyheterocyclic hybrid scaffolds have been accessed via one-pot three-component reaction by exploiting the build/couple/pair strategy of diversity oriented synthesis.
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Metal-free cascade reactions of aziridines with arylalkynes and aryldiazoniums: facile access to arylazopyrrolines

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Org. Biomol. Chem., 2020, 18,3149-3157
DOI: 10.1039/D0OB00346H, Paper
Jing Rong, Hao Jiang, Sijing Wang, Zhenni Su, Huiyan Wang, Chuanzhou Tao
A novel and facile approach to synthesize arylazopyrroline scaffolds via metal-free cascade reactions of aziridines with arylalkynes and aryldiazoniums has been developed, providing access to a variety of 4-arylazo-2-pyrrolines in a highly concise fashion.
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Experimental results and computational insight into sequential reactions of β-(2-aminophenyl)-α,β-ynones with aryl isocyanates/benzoyl isothiocyanate

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Org. Biomol. Chem., 2020, 18,3177-3189
DOI: 10.1039/D0OB00087F, Paper
Antonio Arcadi, Massimiliano Aschi, Marco Chiarini, Fabio Marinelli, Vincenzo Marsicano, Gustavo Portalone
The selective formation of quinazoline vs. benzoxazine  and benzothiazine derivatives from β-(2-aminophenyl)-α,β-ynones and aryl isocyanates/benzoyl isothiocyanate was explored. DFT calculations provide a plausible rationale.
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Photocatalytic xanthate-based radical addition/cyclization reaction sequence toward 2-biphenyl isocyanides: synthesis of 6-alkylated phenanthridines

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Org. Biomol. Chem., 2020, Advance Article
DOI: 10.1039/D0OB00136H, Communication
Pedro López-Mendoza, Luis D. Miranda
A photocatalytic xanthate-based radical addition/cyclization reaction cascade toward 2-biphenylisocyanides is described as a practical and modular approach to 6-alkylated phenanthridines.
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A laccase-catalysed tyrosine click reaction

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Org. Biomol. Chem., 2020, Advance Article
DOI: 10.1039/D0OB00650E, Communication
Shinichi Sato, Keita Nakane, Hiroyuki Nakamura
The tyrosine click reaction of peptides/proteins with the tyrosine modification reagent, N-methyl luminol, was catalysed by a laccase in the presence of molecular oxygen (O2) at 37 °C.
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A silver-catalyzed radical ring-opening reaction of cyclopropanols with sulfonyl oxime ethers

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Org. Biomol. Chem., 2020, Advance Article
DOI: 10.1039/D0OB00055H, Paper
Xiaobao Zeng, Xin Wang, Yanan Zhang, Li Zhu, Yu Zhao
A simple and efficient method for the radical ring-opening reaction of cyclopropanols with sulfonyl oxime ethers catalyzed by AgNO3 is developed, affording γ-keto oxime ethers in moderate to good yields.
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Enantioselective Synthesis of Indanone Spiro-Isochromanone Derivatives via Dinuclear Zinc-Catalyzed Michael/Transesterification Tandem Reaction

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Org. Biomol. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0OB00541J, Paper
Xiao-Chao Yang, Meng Xu, Jin-Bao Wang, Meng-Meng Liu, Francois Mathey, Yuan-Zhao Hua, Mincan Wang
An enantioselective Michael/transesterification tandem reaction of α-hydroxy indanones with ortho-ester chalcones was realized by dinuclear zinc catalysts. A series of enantiomerically pure spiro[indanone-2,3’-isochromane-1-one] derivatives were obtained in good yields with...
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Chemo- and regioselective click reactions through nickel-catalyzed azide–alkyne cycloaddition

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Org. Biomol. Chem., 2020, 18,3374-3381
DOI: 10.1039/D0OB00579G, Paper
Woo Gyum Kim, Seung-yeol Baek, Seo Yeong Jeong, Dongsik Nam, Ji Hwan Jeon, Wonyoung Choe, Mu-Hyun Baik, Sung You Hong
Nickel-catalyzed [3 + 2] cycloaddition reactions of unsymmetrical alkynes and organic azides afford substituted 1,2,3-triazoles with high levels of chemo- and regioselectivity.
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Gold(III)-catalyzed azide-yne cyclization/O–H insertion cascade reaction for the expeditious construction of 3-alkoxy-4-quinolinone frameworks

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Org. Biomol. Chem., 2020, Advance Article
DOI: 10.1039/D0OB00745E, Paper
Jingjing Huang, Han Su, Ming Bao, Lihua Qiu, Yuanqing Zhang, Xinfang Xu
A gold-catalyzed cascade reaction has been developed, and it provides an expeditious access to 3-alkoxy-4-quinolines and applications in alkaloid synthesis.
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A Selectfluor-promoted oxidative reaction of disulfides and amines: access to sulfinamides

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Org. Biomol. Chem., 2020, Advance Article
DOI: 10.1039/D0OB00720J, Paper
Haibo Mei, Jiang Liu, Romana Pajkert, Gerd-Volker Röschenthaler, Jianlin Han
An unprecedented metal-free oxidative reaction of disulfides and amines with Selectfluor as a mild oxidant under aerobic conditions was developed.
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Late-stage synthesis and application of photoreactive probes derived from direct benzoylation of heteroaromatic C–H bonds

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Org. Biomol. Chem., 2020, Advance Article
DOI: 10.1039/D0OB00336K, Communication
Kevin D. Hesp, Jun Xiao, Graham M. West
A synthetically-driven, late-stage C–H benzoylation strategy for the expedited preparation and evaluation of heterocyclic alternatives to more classical benzophenone photoreactive probes is reported.
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Dienaminodioate based multicomponent reactions with post-benzylic oxidative transformations mediated by DDQ

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Org. Biomol. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0OB00721H, Paper
Jaice Ravindran, Velickakathu Yadhukrishnan, Reghuvaran Asha , Ravi Shankar Lankalapalli
Multicomponent reactions (MCRs) using dienaminodioate with post-benzylic oxidative transformation by DDQ that afforded a diverse array of products is described. An unprecedented rearrangement of 1,2-dihydropyridines (1,2-DHPs), 3CR products, to 2-pyridones...
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Efficient synthesis of a galectin inhibitor clinical candidate (TD139) using a Payne rearrangement/azidation reaction cascade

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Org. Biomol. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0OB00910E, Paper
Jacob St-Gelais, Vincent Denavit, Denis Giguère
Selective galectin inhibitors are valuable research tools and could also be used as drug candidates. In that context, TD139, a thiodigalactoside galectin-3 inhibitor, is currently being evaluated clinically for the...
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[ASAP] Controlling Surface Phase Transition and Chemical Reactivity of O3-Layered Metal Oxide Cathodes for High-Performance Na-Ion Batteries

By dx.doi.org
Published On :: Fri, 01 May 2020 04:00:00 GMT

ACS Energy Letters
DOI: 10.1021/acsenergylett.0c00700


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Practices to mitigate alkali-silica reaction (ASR) affected pavements at airports / Kurt D. Smith, Thomas J. Van Dam

By library.mit.edu
Published On :: Sun, 1 Mar 2020 06:22:22 EST

Barker Library - TA441.S65 2019


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[ASAP] Kinetics Analysis of the Reactions between Peroxynitric Acid and Amino Acids

By feedproxy.google.com
Published On :: Thu, 30 Apr 2020 04:00:00 GMT

Chemical Research in Toxicology
DOI: 10.1021/acs.chemrestox.9b00408


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Wow! Haha! Angry! Facebook Finally Has Emoji Reactions

By www.wired.com
Published On :: Wed, 24 Feb 2016 20:13:12 +0000

Facebook just expanded the “Like” button with a feature it calls Reactions---six animated emoji the company hopes will let users to respond with more emotional nuance to the posts in their news feeds.


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Seniors React to Driverless Cars

By www.wired.com
Published On :: Wed, 11 May 2016 10:00:00 +0000

WIRED takes ten seniors for a ride in a self-driving shuttle around UCSD's campus. How do they feel about this cutting edge technology? Directed and produced by Jared Neumark Shot by Benji Dell Sound by Kara Johnson Edited by Josh VanBurskirk Special thanks to Serving Seniors and Varden Labs


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Obsessed - Meet The Domino Artist Behind These Amazing Chain Reactions

By www.wired.com
Published On :: Thu, 06 Sep 2018 16:00:00 +0000

19-year-old Lily Hevesh is obsessed with dominos. She spends hours upon hours building insanely intricate designs and chain reactions before knocking them down. Sound like a strange way to spend your time? Tell that to the nearly 2 million people who've subscribed to her YouTube Channel, where she posts new domino videos every Saturday.


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Lipid-based mesophases as matrices for nanoscale reactions

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Nanoscale Horiz., 2020, Advance Article
DOI: 10.1039/D0NH00079E, Review Article
Livia Salvati Manni, Wye-Khay Fong, Raffaele Mezzenga
Review of nonlamellar lipidic mesophases as matrices for organic and enzymatic reactions, and synthesis of polymeric, metallic and mesoporous materials.
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The origin of the unusual red-shifted aggregation-state emission of triphenylamine-imidazole molecules: excimers or a photochemical reaction?

By pubs.rsc.org
Published On ::

Mater. Chem. Front., 2020, 4,1411-1420
DOI: 10.1039/C9QM00737G, Research Article
Jin Liu, Jianai Chen, Yujie Dong, Yue Yu, Shitong Zhang, Jianli Wang, Qingbao Song, Weijun Li, Cheng Zhang
Revealing the actual origin of the unusual red-shifted aggregation-state emission of triphenylamine-imidazole molecules: is the photochemical reaction rather than the excimers.
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